Gas Gas Ec 300 2004 Carb setup issue

[(F5)]

I'd try the 40 or 42 and once fully warm get it to idle for 5 seconds and stop testing concentrating on how it runs.

180 is huge main. Try 175.

[JayStallion]

Originally Posted by (F5)

I'd try the 40 or 42 and once fully warm get it to idle for 5 seconds and stop testing concentrating on how it runs.

180 is huge main. Try 175.

I'm getting a jet kit 10 pilots 10 main all different sizes delivered next week so I will try your recommendations
Thanks for your advice ��
Just out of curiosity what jets do you have in your ec 300? I know 1 setup doesn't fit all I'm just wondering

[Gasser Nate]

What needle is in there? Read the jetting threads and get a good grasp of what adjustment does what. A 35 pilot is way too small for a AS1 carbed 300.
I had that exact bike and it would idle all day long on a 45 with a N3EG needle second clip and a 178 main. Never fouled a plug either.
That stock needle is rubbish if that is what is in there.

[frankinberg]

What elavation I would stay wit the 42 pilot

[Gasser Nate]

Originally Posted by frankinberg

What elavation I would stay wit the 42 pilot

I was at sea level to 1000m I would guess.

[(F5)]

Originally Posted by JayStallion

I'm getting a jet kit 10 pilots 10 main all different sizes delivered next week so I will try your recommendations
Thanks for your advice ��
Just out of curiosity what jets do you have in your ec 300? I know 1 setup doesn't fit all I'm just wondering

I think I had 175 or 172, with original but I've got a newer carb on it now as mine got needle tube damage from some grit. So I'm 170, but that's another story.

[JayStallion]

Originally Posted by Gasser Nate

What needle is in there? Read the jetting threads and get a good grasp of what adjustment does what. A 35 pilot is way too small for a AS1 carbed 300.
I had that exact bike and it would idle all day long on a 45 with a N3EG needle second clip and a 178 main. Never fouled a plug either.
That stock needle is rubbish if that is what is in there.

Not sure what needle is in the carb, it has no markings on it and is just fully brass. As soon as I can I'm going to change the jets to the recommended settings. There was a ton of thick white smoke kicking out of the exhaust after changing the idle jet to the 35 but I know that shouldn't have anything to do with it when doing through the rev range. I've been looking for a place to buy needles from but struggling a little bit to find anywhere in the UK. Thanks for your recommendations I will post my results probably this weekend

[Gasser Nate]

If you do not know what the needle is put it aside and fit one of the recommendations. A new needle from either Suzuki or a Ktm dealer is only about $10-20 Australian. So stuff all. Well worth the hassle of finding one.

[JayStallion]

Originally Posted by Gasser Nate

If you do not know what the needle is put it aside and fit one of the recommendations. A new needle from either Suzuki or a Ktm dealer is only about $10-20 Australian. So stuff all. Well worth the hassle of finding one.

OK so I've found a UK based ebayer who's selling a N3EG needle brand new from yamaha warehouse it is for a yz250 1986. Do you think this will fit my carb, like I say it does say it is a N3EG needle.
Thanks so much for your help, I guess I can order it and return it if its not right

[swazi_matt]

Originally Posted by JayStallion

OK so I've found a UK based ebayer who's selling a N3EG needle brand new from yamaha warehouse it is for a yz250 1986. Do you think this will fit my carb, like I say it does say it is a N3EG needle.
Thanks so much for your help, I guess I can order it and return it if its not right

should work. I think it is also used in ktm's